Lighting-fixture shade holder



l. WOLARSKY LIGHTING FIXTURE SHADE HOLDER Feb. 24, 1931.

Original Filed March 2, 1929 INVENTOR fsl'ziare lVa/arsl-y BY M ATTORNEY 20 or globes of Reissued Feb. 24, 1931 UNITED STATES PATENT OFFICE.

'rsrn'o'rm woLARsKYfoF MOUNT VERNON, NEW YORK LIGHTING-FIXTURE SHADE HOLDER Original No. 1,761,511, dated Juneje, 1930,

Serial No. 344,084,'fil6d March a, 1929. Application for reissue [filed November 22, 1930. Serial No. 497,599.

'The present invention relates to lighting fixture shade holders and is more particularly directed toward devices for holding shades or globes in kitchen units, commerwhich em- ,ploy shades or globes having fairly large necks. a v

Glassware. of the type employed in these fixtures is generally provided with a lip or head about the upper part or neck of the globe or shade," andit has heretofore been thepractice to support such shades by devices engageable with such lip or bead. These shades are made to have various nor- 15 mal sizes dependent upon the size of the unit and fitter which is to be employed. It is, however, impossible in manufacturing glass ware to have the glass parts made accurately to size andas a result of this diflic ult y shades the same nominal size made by various manufacturersv may vary as much as in size. I

Inasmuch as these shades, in the larger sizes, are quite heavy, it is essential in a satisfactory shade holder to insure that there is no possibility of the shade becoming loose after it has been secured in place; andthe present invention contemplates a positive lock in the same whereby the shade is se- ,.30 curely held in place and it cannot force the shade-holding devices to a position to permit the shade to loosen v According to the present invention the shade receiving skirt orband of the fixture carries shade supporting devices which include a spring protractable plunger to engage the shade and. an externally accessible knob or other similar device to retract the 1 plunger to' release the shade. The device may have a knob controlled interlock to secure the plunger in protracted position so that the shade lip cannot cam it outwardly, and/or the entire device may be bodily ad- A5 '6 of shade lips.

The accompanying drawings show, for purposes of illustration, several of the many possible embodiments in which the present 1 invention may take form, it being understood secured in place by soldering or riveting and justable to compensate for variations in size that these drawings are illustrative of the invention. rather than limiting the same.

In these drawings:

Figure 1 is an olevational view of an enclosed lighting unit;

Figure 2 is a section taken at line 2 2 of Figure 1;

Figure, 3 is an enlarged vertical sectional view on the line 3'3 of Figure 2;

Figure 1' is a. sectional view illustrating the componentparts of the device illustrated.

in Figure 3; r s

Figure 5 is an'assembly view of a slightly modified form of construction; and

Figure 6 is an elevational view of a still further modified form of construction. 7,

A typical enclosed lighting unit, as illustrated in Figure 1, contains a support 10 which may be made of stamped sheet metal,

porcelain, or other material which is em ployed in such devices. It has a shade receiving skirt or band adapted to receive the neck or lip 12 of a shade or globe 13.

The'shade is supported by shade supporting devices 14, 15 and 16. The devices 14 and 15 may be pressed in from the skirt, formed integral with it, or in the form of lugs soldered or riveted to the skirt. These two devices are generally fixed in position and are adapted to receive the bead or lip of the shade 5Q opposite the device 16. The shade supporting device 16 is of special construction and is adapted to releasably hold the shade in lace and to securely lock it in place. The

details'of the construction of one form 0' shade holding device are shown in Figures 3 and 1. v

The skirt or fixture body 11 carries a threaded bushing 17. This bushing may be may for example be threaded to have /4 pipe threads as indicated at 18. This bushing is adapted to receive a tubular member 19 externally threaded as indicated. The threads, on this tubular member preferably {.5 do not extend the full length of the member. They are preferably cut short slightly at the left or inner end, as indicated at 20, thereby. making it impossible to completely thread the member 19 through the bushing. This 12-9 tubular memberhas an inner chamber 21 and an aperturedend Wall 22. The barrel or tubular member is threaded into the bush.-

secure the tubular member in place:

' on to the end 34 of the barrel or tubular meinshade.

same.

7 passed into. the

'niovcd, the end of the The tubular member 19 is adapted to r eceive a plunger 24 and coiled spring 25. The I inner end of the plunger 24 has a" rounded.

nose or tip26, While the outer end is threaded as indicated at 27, and may be-provided With a recess 28." The plunger is adapted to be from the left or inside asindicated in Figure 4:, so that the spring 25 is housed between the shoulders 29 and 30. The smaller threaded end of the plunger passes out through the holein the barrel 19, and a knob or end c'ap 31 is threaded on to the plunger. In order that the end cap cannot be accidentally replunger is upset as indicated at 32. The knob 31 is an internally threaded portion 33,'adaptedto be threaded ber 20. a

The deviceshown in F igures'3 and 4 Open .at-es as follows; The complete device 16 is constructed to permit threading the barrel or tubular member 19 back enough to unthread the .knob or cap 31 from the end ofthe barreland can then pull the plunger out sufliciently to permit lowering d the shade. IVhen the shade is'repla ced, the plunger is withdrawn and shade raised to position and then the pressure released to permit the plunger to close in against the tively resists any or out. through the lip,

tendency to push the plungexerts a considerable" hori- Wardly. This force is so great in heavy shades that it would be lnconvenlent to provide a strong enough coil spring to resistthe In the modified form of construction indicated in F 1gur'e5, the partsare somewhat the same as'above described in detail. The

barrel, 19 has a reduced end portion l9 'threadedas indicated. 1 The plunger 24 has a reduced end portion 24f adapted to pass into the smooth hole drilled in the kno or the knob is tubular member. or barrel 19 and forth in thebushing ISandsecuringit inplace by' the lock-washer or nut 23. In this manner one The cap is given a slight turn so'as to thread t on to the barrel and this effec- The Weight of the shade, actingstoppd near the slot- 43. "thengbe threaded inand out-from the out without pushing the plunger inwardly. "This el'imi-natesfithepossibility of exerting undue pressure on the globe or shade when Ventsthe plunger from being pushed out from the inside. This form of construction also has the advanta e of making it possible to completely assem ,le the tubular member and "enclosed parts They vmay then-be threaded as a u'nit in to'the bushing 18 and 'thelo'c lr-Washer 23 threaded onto the barrel to-lock the parts in place. With this form of construction it is unnecessary for the fixture: manufacturer to disassemble the-parts.

'Inthe form of c0nstruct'i0n shown in Fig.- ure' 6, the barrel or tubula'r member 40 'is preferably threaded for the entire length, thesame as, the barrel '19. iThe plunger 41' is "providedwith a pin 42 adapted to enter the slot 43 inthebarrel; The plunger 41 is also threaded into aunts-44' and is surrounded by'a coiledspr'ing fi whichis held $et wee1'1fash0ulder 460a the plunger and .Thelost motion connection between the shoulder 24* and 29 makes it possibletoturn the knobfil on the threads given the final turn Which Inc. I

the flange 4 7 011 .t he e nd of the barrel. This device .m-ay be. threaded .intothe bushing" 18 in t h'e same manner as previously described and may be adjusted to proper position as above set forth. In this. form of construe tionth'e knob am, he pulled out when the plunger is'tur n'e to" bring the pin to the Open' 'partof the slot 4 3, andthe plunger maybe lockedyagainst axial movement by turning the plunger'to' bring the .pin to the position as indicated in the full lines in vthe raWingL- V v This bayonet slot'iarrangement is',-,how-v ever, somewhat more expensive to manufacture and has the disadvantage relative to the threaded interlock, that it is somewhat more difficult to locate the slot than the threads. Furthermore, the knob and plunger move asa unit and there isno opportunity forthe lost'motio'n arrangement of F igure 5.

NVheI-e there" is no objection to the possivices, one-can'cutthe threads on the entire length of the tubular member, or in the case of the barrel 40,- the threading I may be The devices may side. Y a v The devices which. have been above described arej well suited for. the purpose of supporting Various sized, shades or globes. e -arts ma be made one screw machine and t ose oft 'etype shown'in-Figures 5 and canopy by the immufacturc'r. Tliepai'tsare assembled as above described and the purchaser otthe canopy may then ad]ust the holder 16 according to the size of shade or globe which happens to be used inthe particular fixture. The shade may be easlly releas-edwhen it IS desired to do so. There 1s no possibility of accidentally releasing it. 10

What is claimed is: I 1. In a lighting fixture, a support'for shades of the type having a lip, comprising, a shade receiving band adapted to receive the lip of the shade and having a threaded aperture therein, a tubular member threaded and a spring pressed into said aperture, plunger carried in the tubular member and provided with an externally accessible knob and a shade engaging tip, the member being adjustable by threading it inthe aperture to compensate for variations in the size of shades, the plunger being capable of being withdrawn by the knob to allow the lip on the shade to pass by the plunger tip.

2. In a lighting fixture, asupport for shades of thetype having a lip, comprising,

a shade receiving band adapted to recelve the lip of the shade and having a threaded aperture therein, a tubular member threaded into said aperture from the inside of the band, the threaded member having an abutment to prevent threading the member all the way through the aperture, a lock nut threaded on the member for securing it in place, and a spring pressed plunger carried in the tubular member and provided with an externally accessible knob and a shade engaging tip, the member being adjustable by threading it in the aperture to compensate for variations in the size of shade, the plung or being capable of being withdrawn by the knob to allow the lip on the shade to pass by the plunger tip.

3. In a lighting fixture, a support for shades of the type having a lip, comprising,

a shade receiving band adapted to receive the lip of the shade and having a threaded aperture therein, a tubular member threaded. into said aperture, a spring pressed plunger carried in the tubular member and provided with an externally accessible knob and a. shade engaging tip, the member being adjustable by'threading it in theaperture to compensate for variations in the size of shades, the plunger being capable of being Withdrawn by the knob to allow the lip on the shade to pass by the plunger tip, and a knob controlled locking device for interlocking the plunger and tubular member to prevent forcing the plunger outward.

4. In a lighting fixture, a support for shades of the type having a lip, comprising, a shade receiving band adapted to receive the lip of the shad-e and having a'threaded aperture therein, a tubular member threaded plunger being into said aperture, and a spring pressed plunger carried in the tubularme'i'nber and the member being theplunger being capable of being withdrawn by the knob to allow the lip on a the shade to pass by the plunger tip, th-ejtubular member and knob'having cooperative threads adapted to be brought 1nto threaded engagement when the plunger is in its inner position for holding the plunger against axial movement.

5. In a lighting fixture, a support for shades of the type having a lip, comprising, a shade receiving band adapted to receive the lip of the shade and having a threaded aperture therein, a tubular member threaded into said aperture, and a spring pressed plunger carried in the tubular member and provided with an externally accessible knob and a shade engaging tip, the member being adjustable by threading it in the aperture to compensate for variations in the size of shades, the capable of being withdrawn by the knob to allow the lip on the shade to pass-by the plunger tip, the tubular member and knob having cooper ative threads adapted to be brought into threaded engagement when the plunger is in its inner position for holding the plunger against axial movement, there being a lost motion connection between the knob and plunger topermit threading'the knob onto the tubular member without moving the plunger tip further toward the shade.

6. A shade holding device for use with shade receiving supports having threaded apertures, comprising an externally threaded barrel adapted to be threaded into such apertures and having an interiorly disposed apertured flange at its outer end, a plunger carried in said barrel and having a shade engaging tip, a coiled. spring interposed between the flange and a shoulder onthe plunger and turning it in the threaded aperture.

7. A shade holding device for use with shade receiving supports having threaded apertures, comprising an externally threaded barrel adapted to be threaded into such apertures and having an interiorly disposed apertured flange at its outer end, a plunger carried in said barrel and having a shade engagingtip, a coiled spring interposed between the fiange and a shoulderon the plunger and tending to protract the plunger,v a knob connected to the plunger to retract the plunger, and a knob controlled. locking device interposed between the plunger and barrel for preventing axial movement of the plunger, the shade holding device being adjustable for variations in size of shade by turning'it in thethreaded aperture. 8'. A shade holding device for usewith shade receivingsupports having threaded apertures, comprising an externally threaded barrel adapted to be threaded into such apere tures and having an interiorly disposed apertured flange at its outer end, a plunger. carried in said barrel and having ashade engag ing tip, a coiled 's'pringfinterposed between the flange and a shoulder on the plunger and tending to protract the. plunger, *andaknob connected to the plunger to retract the plunger, the barrel and knob having cooperative threads adaptedto be brought into threaded engagement when the plunger is in its inner position for holding the plunger against axial movement, the shade holding device being adjustable for variations in-size of shade by: turning it in the threaded aperture.

9; A shade holding device for use with shade receiving supports having threaded apertures, comprising an externally threaded barrel adaptedto bethreaded into such apertures and having. an interiorly disposed apertured flange at its outer end, a plunger'carj ried in said barrel. andhaving a shade ena ing tip a coiled sprin 'interposedbetween I th flange and a shoulder on the plunger and tending to protract the plunger, and a knob having a lost motion connection-with the plunger and adapted to retractgthe plunger, the knob and barrel having cooperative threads adapted to be brought into threaded engagement when the plunger-is in its inner position for holding the plunger against axial movement, the lost motion connection permitting threading'the knob into the tubular memher without moving the plunger tip to exert pressure on the shade, the shade holding device being ad ustable for varlations in size of shade by turning it in the threaded aperture.

'10. A shade holding device for use with shade receiving supports having threaded apertures, comprlsing an externally threaded barrel adapted to be threaded into such apershade receiving supports having threaded apertures, comprising an externallythreaded tures and having an interiorlydisposed apertured flange at itsouter end, a plunger carried in said barrel andhaving a shade engaging tip, a coiled spring interposed between the flange and a shoulder on the plunger and tending to protract the plunger, the-plunger having a reduced outer end, and a knob permanentlysecured thereon by upsetting the extreme end of the plunger, the knobbeing adaptedto retract the plunger, the knob and barrel having'threads whereby these parts may be secured together to preventaxial movement of .the plunger.

'11. A shade holding device for, use with barrel adapted to be threaded into such apertures and having an interiorly disposed apertured flange at its outer end, a plunger carange and a shoulder on the plunger plunger having a reduced outer end, and a knob slidably carried in said outer end'and permanently secured thereon by upsetting the extreme end of the plunger, ,theknoh being adapted to retract the plunger, the knob and barrel having threads whereby these parts may be secured together to prevent axial -..movement of the plunger, the slidability of the knob on the plunger allowing the knob and barrel to be threaded together without exerting pressure on a shade.

12. In a lighting fixture, a support for shades of the type having a lip, comprising, a shade receiving band, a reciprocatory plunger carried in an externally threaded barrel supv ported by the band, a spring to urge the plunger toward theshade lip, and a. knob connected to the plunger and threaded to receive the threaded portion of the barrel, the knob, when unthreaded from the barrel, being effective to. withdraw theplunger from the shade, the parts when threaded together acting-to prevent axial movement of the'plunger so that is cannot be forced outwardly by the shade.

.13. In a lighting fixture, a support for shades of the type having a lip, comprising, a shade receiving band, a reciprocatory plunger carried therebyandhaving a spring an externally:

to urge it toward the shade lip, disposed knob for pulling the plunger away from the shade, a relatively fixed, threaded member supported from the band adjacent the knob and concentric-with the plunger, and threads on the knob for cooperating with the threads on the threaded member for-securing the knob to-the plunger whereby the plunger cannot be forcedoutwardly torelease the shade.

14. In a lighting fixture, a support having i.

a shade receiving skirt, a shade having a lip adapted to be received in said skirt, and shade supporting devices carried by the skirt, said devices including a spring protractable plunger to engage the shade, accessible knob for retracting the plunger to release the shade, a fixed threaded member about the exposed end of the plunger, and threads on the knob for securing the knob to the threaded member so that the knob and plunger cannot be forced outwardly to release the shade.

15. In a. lighting fixture, a support having a shade receiving skirt, a, shade having'a lip adapted to be received in said skirt, and shade supporting devices carried by the skirt, said devices including a spring protractable plunger to. engage the'shade, an externally accessible knob for retracting the plunger an externally 

